Paul Chapman is another Geelong veteran who is struggling to shake off an injury.

Chapman, whose performances in previous seasons means he is still No. 32 in the Official AFL Player Ratings, has been sidelined by hamstring soreness since round four, and he won't be back in the team anytime soon.

"He's had two weeks where he's done very little leg-loading," Snelling said. "So he's had a bit of rest, and we've got to now assess him as to whether we push him on.

"He's going to do a little bit more this week, but he's certainly a few weeks away from coming back to play."

In better news for the Cats, midfielder Taylor Hunt, who broke his collarbone against Essendon in round seven, has been declared fit for this weekend's clash with the Brisbane Lions at the Gabba.

"He's ready," Snelling said. "The bye came at a really good time. He's been able to do a lot of training, he's doing some contact training, and hopefully we should see him this week."

Steve Johnson and Allen Christensen, who were both concussed after colliding during Geelong's round 11 match against Greater Western Sydney, are also back to full fitness.

"Thankfully that wasn't too bad," Snelling said. "They were pretty good even after the game.

"They've recovered fully, so they're up and running and training and we should expect them to be available this week."

Defender Jared Rivers, who hasn't played since injuring his knee in round five, remains at least a couple of weeks away from a return.

"He's running and starting to do a little bit of training, so he's just got to increase that training load out on the track," Snelling said.

"Once we know he's comfortable with that, then we'll start considering him for games."

Travis Varcoe (shoulder) is also around a month away from being declared fit to play, while George Burbury (quad), Josh Cowan (hamstring) and Jackson Sheringham (shoulder, hamstring) will be sidelined for another two to three weeks.